<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 用户列表主体部分 -->
    <el-card>
      <!-- 搜索区域 -->
      <!-- 搜索添加 -->
      <el-row :gutter="25">
        <el-col :span="10">
          <el-input placeholder="请输入搜索内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <!-- 添加按钮 -->
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表  border 边框 stripe 隔行变色 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index" label="序号"></el-table-column
        ><!--索引列-->
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="密码" prop="password"></el-table-column>
        <el-table-column label="角色" prop="role"></el-table-column>
        <el-table-column label="状态" prop="state">
          <!--作用域插槽 scope.row 存储了当前行的信息 -->
          <template slot-scope="scope"
            ><!--数据模板-->
            <el-switch
              v-model="scope.row.state"
              @change="userStateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <!--自定义插槽-->
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!-- 修改 -->
            <el-tooltip
              effect="dark"
              content="修改"
              placement="top-start"
              :enterable="false"
              ><!--文字提示 enterable 隐藏-->
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
            </el-tooltip>

            <!-- 删除 -->
            <el-tooltip
              effect="dark"
              content="删除"
              placement="top-start"
              :enterable="false"
              ><!--文字提示 enterable 隐藏-->
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="deleteUser(scope.row.id)"
              ></el-button>
            </el-tooltip>

            <!-- 权限 -->
            <el-tooltip
              effect="dark"
              content="分配权限"
              placement="top-start"
              :enterable="false"
              ><!--文字提示 enterable 隐藏-->
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页 size-change 每页最大数变化 current-change 页数变化 layout 功能组件-->
      <div>
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pageNum"
          :page-sizes="[1, 2, 5, 100]"
          :page-size="queryInfo.pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
        ></el-pagination>
      </div>
    </el-card>

    <!-- 新增用户区域 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <!-- 用户名 -->
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <!-- 邮箱 -->
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
      </el-form>
      <!-- 内容底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>

    </el-dialog>

    <!-- 修改对话框 -->
    <el-dialog title="修改用户信息" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <!-- 用户名 -->
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item label="密码" prop="password">
          <el-input v-model="editForm.password"></el-input>
        </el-form-item>
        <!-- 邮箱 -->
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
      </el-form>
      <!-- 内容底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>

    </el-dialog>
  </div>
</template>

<script>
export default {
  created() {
    this.getUserList();
  },
  data() {
    return {
      // 查询信息实体
      queryInfo: {
        query: "", // 查询信息
        pageNum: 1, // 当前页
        pageSize: 5, // 每页最大数
      },
      userList: [], // 用户列表
      total: 0, // 总记录数
      addDialogVisible: false, // 对话框状态
      // 添加表单信息
      addForm:{
        username:'',
        password:'',
        email:'',
      },
      // 添加表单验证
      addFormRules: {
        username: [
          {required: true, message: '请输入用户名', trigger: 'blur'},
          {min: 5,max: 8,message: '长度在5到8个字符', trigger: 'blur'}
        ],
        password: [
          {required: true, message: '请输入密码', trigger: 'blur'},
          {min: 6,max: 8,message: '长度在6到8个字符', trigger: 'blur'}
        ],
        email: [
          {required: true, message: '请输入邮箱', trigger: 'blur'},
          {min: 5,max: 15,message: '长度在5到15个字符', trigger: 'blur'}
        ],
      },
      editDialogVisible: false, // 对话框状态
      // 添加表单信息
      editForm:{
        username:'',
        password:'',
        email:'',
      },
      // 修改表单验证
      editFormRules: {
        password: [
          {required: true, message: '请输入密码', trigger: 'blur'},
          {min: 6,max: 8,message: '长度在6到8个字符', trigger: 'blur'}
        ],
        email: [
          {required: true, message: '请输入邮箱', trigger: 'blur'},
          {min: 5,max: 15,message: '长度在5到15个字符', trigger: 'blur'}
        ],
      },
    };
  },
  methods: {
    //获取所有用户
    async getUserList() {
      // 调用post请求
      const { data: res } = await this.$http.get("allUser", {
        params: this.queryInfo,
      });
      this.userList = res.data; // 将返回数据赋值
      this.total = res.numbers; // 总个数
    },
    // 监听pageSize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pageSize = newSize;
      this.getUserList(); // 数据发生改变重新申请数据
    },
    // 监听pageNum改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pageNum = newPage;
      this.getUserList(); // 数据发生改变重新申请数据
    },
    // 修改用户状态
    async userStateChanged(userinfo) {
      const { data: res } = await this.$http.put(
        `userState?id=${userinfo.id}&state=${userinfo.state}`
      );
      if (res != "success") {
        userinfo.state = !userinfo.state;
        return this.$message.error("操作失败！！！");
      }
      this.$message.success("操作成功！！！");
    },
    // 监听添加用户
    addDialogClosed(){
      this.$refs.addFormRef.resetFields();
    },
    // 确认添加
    addUser(){
      this.$refs.addFormRef.validate(async valid=>{
        if(!valid) return;
        const {data:res} = await this.$http.post("addUser",this.addForm);
        if(res!="success"){
          return this.$message.error("操作失败！！！");
        }
        this.$message.success("操作成功！！！");
        this.addDialogVisible = false;
        this.getUserList();
      });
    },
    // 根据主键删除用户
    async deleteUser(id){
      const confirmResult = await this.$confirm('此操作将永久删除用户,是否继续?','提示',{
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if(confirmResult!='confirm'){// 取消
        return this.$message.info("已删除取消");
      }
      const {data:res} = await this.$http.put(`deleteUser?id=${id}`);
      if(res!="success"){
          return this.$message.error("删除失败！！！");
        }
        this.$message.success("删除成功！！！");
        this.getUserList();
    },
    // 显示对话框
    async showEditDialog(id){
      const {data:res} = await this.$http.put(`getUpdate?id=${id}`);
      this.editForm = res;// 查询出用户信息反填回编辑菜单
      this.editDialogVisible = true;// 开启编辑对话框
    },
    // 关闭窗口
    editDialogClosed(){
      this.$refs.editFormRef.resetFields();
    },
    // 确认修改
    editUserInfo(){
      this.$refs.editFormRef.validate(async valid=>{
        if(!valid) return;
        const {data:res} = await this.$http.post("editUser",this.editForm);
        if(res!="success"){
          return this.$message.error("操作失败！！！");
        }
        this.$message.success("操作成功！！！");
        this.editDialogVisible = false;
        this.getUserList();
      });
    },
  },
};
</script>

<style lang='less' scoped>
/* 面包屑样式 */
.el-breadcrumb {
  margin-bottom: 15px;
  font-size: 17px;
}
</style>